/*
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 * and open the template in the editor.
 */
package controller;

import DAO.Util.*;
import Pojo.*;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author ducquyen
 */
@WebServlet(name = "ThiSinhTraCuuKetQuaThicontroller", urlPatterns = {"/ThiSinhTraCuuKetQuaThicontroller"})
public class ThiSinhTraCuuKetQuaThicontroller extends HttpServlet {

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        HttpSession session = request.getSession();
        try {
            String action = request.getParameter("Action");
            if (action != null) {
                if(action.equals("View")){
                    if(session.getAttribute("cmnd")==null){
                        request.setAttribute("dangnhapthatbai", -1);
                        request.getRequestDispatcher("/ThiSinhTraCuuKetQuaThi.jsp?").forward(request, response);
                    }else{
                        String cmnd = session.getAttribute("cmnd").toString();
                        List<Thisinh> ds = ThiSinhDAO.LayThongTinThiSinhTheoCMND_List(cmnd);
                        if(ds.size()>0){
                        session.setAttribute("flag", 1);
                        for(int i=0;i<ds.size();i++){
                            Thisinh ts = ds.get(i);
                            session.setAttribute("username_", ts.getHoTen());
                            session.setAttribute("cmnd", ts.getCmnd());

                            int tongSoDong = KetquaDAO.LayDanhSachKetQuaThi();
                            int soDongTrongMotTrang = 20;
                            int dongBatDau = 0;
                            int trang = 1;
                            if (request.getParameter("Trang") != null) {
                                trang = Integer.parseInt(request.getParameter("Trang"));
                                dongBatDau = (trang - 1) * soDongTrongMotTrang;
                            }
                            List<Ketqua> kqtemp = KetquaDAO.LayDanhSachKetQuaThiTheoCMND(cmnd,dongBatDau, soDongTrongMotTrang);
                            ArrayList<Ketqua> kq = new ArrayList<>() ;
                            for(int j=0;j<kqtemp.size();j++){
                                Ketqua kqcmnd = kqtemp.get(j);
                                if(kqcmnd.getThisinh().getCmnd().equals(cmnd) )
                                    kq.add(kqcmnd);
                            }
                            session.setAttribute("ThiSinhTraCuuKetQuaThi_ketQuaTraCuu", kq);
                            tongSoDong = kq.size();
                            int tongSoTrang = tongSoDong / soDongTrongMotTrang;
                            if (tongSoDong % soDongTrongMotTrang != 0){
                                tongSoTrang++;
                            }
                                request.setAttribute("dangnhapthatbai", -1);
                                session.setAttribute("Trang", trang);
                                session.setAttribute("TongSoTrang", tongSoTrang);
                                request.getRequestDispatcher("/ThiSinhTraCuuKetQuaThi.jsp?Trang="+trang+"&TongSoTrang="+tongSoTrang).forward(request, response);
                            }
                        }
                    }
                }
                if (action.equals("TraCuu")) {
                    String cmnd = request.getParameter("CMND");
                    if(cmnd == null){
                        cmnd = (String) session.getAttribute("cmnd");
                    }
                    List<Thisinh> ds = ThiSinhDAO.LayThongTinThiSinhTheoCMND_List(cmnd);
                    if(ds.size()>0){
                        session.setAttribute("flag", 1);
                        for(int i=0;i<ds.size();i++){
                            Thisinh ts = ds.get(i);
                            session.setAttribute("username_", ts.getHoTen());
                            session.setAttribute("cmnd", ts.getCmnd());

                            int tongSoDong = KetquaDAO.LayDanhSachKetQuaThi();
                            int soDongTrongMotTrang = 20;
                            int dongBatDau = 0;
                            int trang = 1;
                            if (request.getParameter("Trang") != null) {
                                trang = Integer.parseInt(request.getParameter("Trang"));
                                dongBatDau = (trang - 1) * soDongTrongMotTrang;
                            }
                            List<Ketqua> kqtemp = KetquaDAO.LayDanhSachKetQuaThiTheoCMND(cmnd,dongBatDau, soDongTrongMotTrang);
                            ArrayList<Ketqua> kq = new ArrayList<>() ;
                            for(int j=0;j<kqtemp.size();j++){
                                Ketqua kqcmnd = kqtemp.get(j);
                                if(kqcmnd.getThisinh().getCmnd().equals(cmnd) )
                                    kq.add(kqcmnd);
                            }
                            session.setAttribute("ThiSinhTraCuuKetQuaThi_ketQuaTraCuu", kq);
                            tongSoDong = kq.size();
                            int tongSoTrang = tongSoDong / soDongTrongMotTrang;
                            if (tongSoDong % soDongTrongMotTrang != 0){
                                tongSoTrang++;
                            }
                            request.setAttribute("dangnhapthatbai", -1);
                            session.setAttribute("Trang", trang);
                            session.setAttribute("TongSoTrang", tongSoTrang);
                            request.getRequestDispatcher("/ThiSinhTraCuuKetQuaThi.jsp?Trang="+trang+"&TongSoTrang="+tongSoTrang).forward(request, response);
                            }
                        }else{
                            request.setAttribute("dangnhapthatbai", 0);
                            request.getRequestDispatcher("/ThiSinhTraCuuKetQuaThi.jsp?").forward(request, response);
                        }
                }
            }
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
